The HERE Isoline Routing API is an HTTP JSON REST API that enables you to find all destinations that can be reached in a specific amount of time, a maximum travel distance, or even the charge level available at the vehicle. The result is an area (represented as a polygon) where each point can be reached within the provided limit. The API can also be used to calculate the reverse isoline, that is, finding all starting points from which the center can be reached.

HERE Isoline Routing API considers real-time and historical traffic in its calculations.

The HERE Isoline Routing API supports the following use cases:

  • Find restaurants within a 2-km walking distance from your current location.
  • Provide results on a hotel search based on proximity to some sights, for example, finding hotels within a 20-minute drive to two major attractions (Disney World and Universal Studios) in Orlando.
  • Enable taxi companies to identify fleet taxis that could reach a customer within a certain time interval.


Access to the Routing service in Japan region is restricted. If your business requires this, please contact HERE.

For information on:

  • How to quickly set up and start using the HERE Isoline Routing API, see Get started.
  • The terms and conditions covering this documentation, see the HERE Documentation License.
  • Data privacy is of fundamental importance to HERE and our customers. We practice data minimization and don't collect data we don't need. And we promote pseudonymity for data subjects wherever a service does not require personal information to function. We employ privacy by design in services we develop. We strive to go beyond mere regulatory compliance and make privacy an integral part of our corporate culture. We believe that our approach to privacy is vital to earning and retaining the trust of our customers - and the bedrock of our future success as a data-driven location platform. For more information on how data privacy is of fundamental importance to HERE and our customers, see the HERE Privacy Policy.

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